This is an example of how to calculate the X and Y position of where the angle of 2 objects intersect. This is useful when you have objects representing lines, and you must calculate their intersection point.
Demo
Please note: The capx contains 2 events that do the same thing. The 1st event calculates the intersection point with a single action. The 2nd event (which is disabled by default) does the same thing, but breaks the math out so it's easier to read/comprehend.